Katie Holmes

Katie Holmes

Katie Holmes and Victoria Beckham's friendship may be the reason why they stay so thin after revelations about their bizarre food sharing diet.

An LA restaurant has told how the pair split meals and water down their drinks when dining there.

Life & Style magazine reports that Katie and Victoria often share a salad main meal while dining at Modeo.

A restaurant regular told the magazine how they spotted the friends sharing a green salad without dressing, one piece of fish and a side of steamed spinach.

They then washed that down with a glass of coke which was split between two glasses of ice and topped up with bottle water.